Sage Creek Basin (East): Orellan, South Dakota

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Reptilia
Peltosaurus sp. Cope 1873
Clark and Kietzke 1967
Reptilia - Testudines - Testudinidae
Stylemys sp. Leidy 1851
Clark and Kietzke 1967
Mammalia - Perissodactyla - Hyracodontidae
Hyracodon nebraskensis (Leidy 1850)
Mammalia - Perissodactyla - Equidae
Mesohippus bairdi (Leidy 1850)
"bairdii"
Mammalia - Hypertragulidae
Hypertragulus calcaratus (Cope 1873)
Mammalia - Leptomerycidae
Leptomeryx evansi Leidy 1853
Mammalia - Leptochoeridae
Leptochoeridae indet. Marsh 1894
Clark and Kietzke 1967
Mammalia - Merycoidodontidae
Miniochoerus gracilis (Leidy 1851)
Merycoidodon culbertsoni (Leidy 1848)
original and current combination Merycoidodon culbertsonii
Mammalia - Camelidae
Poebrotherium wilsoni Leidy 1847
Mammalia - Creodonta - Hyaenodontidae
Hyaenodon sp. Laizer and Parieu 1838
Clark and Kietzke 1967
Mammalia - Carnivora - Nimravidae
Dinictis sp. (Leidy 1854)
Clark and Kietzke 1967
Hoplophoneus sp. Cope 1874
Clark and Kietzke 1967
Mammalia - Carnivora - Canidae
Hesperocyon sp. Scott 1890
Clark and Kietzke 1967
Mammalia - Carnivora - Amphicyonidae
Daphoenus sp. Leidy 1853
Clark and Kietzke 1967
Mammalia - Rodentia - Cricetidae
Eumys elegans Leidy 1856
Mammalia - Rodentia - Ischyromyidae
Ischyromys typus Leidy 1856
Mammalia - Rodentia - Aplodontidae
Prosciurus relictus (Cope 1873)
recombined as Altasciurus relictus
Mammalia - Lagomorpha - Leporidae
Palaeolagus haydeni Leidy 1856
Megalagus turgidus (Cope 1873)
see common names

Geography
Country:United States State/province:South Dakota County:Pennington
Coordinates: 43.9° North, 102.4° West (view map)
Paleocoordinates:45.0° North, 94.2° West
Basis of coordinate:based on political unit
Time
Period:Paleogene Epoch:Oligocene
Stage:Rupelian 10 m.y. bin:Cenozoic 4
*Period:Tertiary
Key time interval:Orellan
Age range of interval:33.90000 - 31.80000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:Brule Member:Scenic
Local section:BgBad Local bed:4
Local order:bottom to top
Stratigraphy comments: Lower Nodular Zone
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection size:1417 specimens
Reason for describing collection:paleoecologic analysis
Taxonomic list comments:NISP 1417
top 3 ft of the LNZ: Clark and Kietzke 1967
about 200 yards east of the western locality
following taxa are not found in list of Clark et al. and may belong to other collections: Eutypomys thomsoni Adjidaumo minutus Paradjidaumo trilophus "Caenopus sp." Subhyracodon sp. Metamynodon planifrons Stibarus obtusilobus Archaeotherium mortoni Heptacodon occidentale - "occidentalis" Hypisodus minimus "Paratylopus sp." Agriochoerus antiquus
Metadata
Also known as:Collection VI; Swamp Assemblage; Swampy Plains Facies
Database number:17173
Authorizer:J. Alroy Enterer:J. Alroy
Modifier:J. Alroy Research group:vertebrate
Created:1995-10-18 00:00:00 Last modified:2010-11-18 22:04:52
Access level:the public Released:1995-10-18 00:00:00
Creative Commons license:CC BY
Reference information

Primary reference:
1328. J. Damuth. 1982. Analysis of the Preservation of Community Structure in Assemblages of Fossil Mammals. Paleobiology 8(4):434-446 [J. Alroy/J. Alroy/J. Ju]

Secondary references:

6205 J. Clark and K. K. Kietzke. 1967. Paleoecology of the Lower Nodular Zone, Brule Formation, in the Big Badlands of South Dakota. Fieldiana 5(7):111-137 [J. Alroy/J. Alroy/J. Alroy]